US - USSR Seminar on Precambrian Geology, the Southern Canadian Shield, and the Eastern Baltic Shield (Duluth, MN:August 1990)

加拿大南部的地盾在许多方面与东部的波罗的海地盾非常相似，包括岩石类型、岩石时代和构造历史。有可能这两个屏蔽物曾经彼此靠近，甚至可能位于同一超大陆上。虽然瑞典和芬兰地质学家关于西部波罗的海盾的论文已经有了，但直到现在，苏联地质学家关于东部波罗的海盾的发现还没有得到。这次研讨会由明尼苏达大学德卢斯分校的理查德·奥贾坎加斯博士和彼得罗扎沃茨克的苏联科学院卡累利安分院地质研究所的谢尔盖·雷巴科夫博士共同举办，将为美国和苏联专家提供一个交流意见、评估和制定这一领域长期合作计划的机会。研讨会还将在明尼苏达州、密歇根州、威斯康星州和邻近的加拿大进行地质实地考察。该项目实现了推进科学知识的计划目标，使美国和苏联的顶尖研究人员能够在平等互利和互惠互利的基础上，在基础科学研究领域的共同利益和能力领域结合互补的努力和能力。

The geology of the southern Canadian Shield is remarkably similar to that of the eastern Baltic Shield in many aspects, including rock types, rock ages, and tectonic histories. It is possible that the two shields were at one time in proximity to each other and may even have been located on the same supercontinent. Whereas papers from Swedish and Finnish geologists on the western Baltic Shield have been available, until now the findings of Soviet geologists on the eastern Baltic Shield have not been accessible. This workshop, co- organized by Dr. Richard Ojakangas of the University of Minnesota-Duluth and Dr. Sergey Rybakov of the Institute of Geology of the Karelian Branch of the Academy of Sciences of the U.S.S.R. in Petrozavodsk, will provide an opportunity for American and Soviet experts to exchange ideas and to evaluate and develop plans for long-term cooperation in this area. The workshop will also involve geological field trips in Minnesota, Michigan, Wisconsin, and adjacent Canada. This project fulfills the program objective of advancing scientific knowledge by enabling leading researchers in the United States and the U.S.S.R. to combine complementary efforts and capabilities in areas of strong mutual interest and competence in the field of basic scientific research on the basis of equality, reciprocity, and mutuality of benefit.